I'm not using any MTK device so I don't risk changing my imei
so that I can use Glo sub of 1k for 3gig monthly
but I'm using mtn 3gig night sub with 1.5gig bonus that can be use only doing the day
and u are only allow to use the bonus 1st which is 1.5gig
after that u will be using the remaining 3gig at night
which only work from 9pm still 6am
but if u are around where mtn internet network is Good
U can be using it 24/7 by leaving ur data on 24/7 also
but once it off or by bad networking like the data goes off mistakingly

gbam u will have to wait still 9pm b4 u can browse again

but to my surprise is working 24/7 now
cuz have subscribed since last two weeks
and is still working very fine after finished my 1.5 gig
5 day after I sub......
I'm using Samsung Galaxy s3

have you guys notice it at all